反复多次通过方法中角动量对重核熔合的影响

Influence of angular momentum on heavy nuclear fusion by multi-passing method

采用试验粒子反复多次通过条件鞍点方法,同时考虑角动量的因素,讨论角动量对鞍点回流效应以及通过几率的影响。考虑角动量影响后,采用试验粒子首次通过条件鞍点模型、反复多次通过条件鞍点模型以及定义在基态位置的模拟方法,系统讨论了不同角动量下温度以及入射能量对通过几率的影响。研究发现,加入角动量后基态位置和势能形式都发生了改变,随着角动量的增加,基态位置右移,势阱逐渐变浅最终消失。角动量越大,通过几率也越大。另外还发现,同一角动量下,温度和入射能量增加,通过几率也会增加。

In this work,the influences of angular momentum on passing probability and the back streaming effect around saddle are discussed by test particle multi-passing over conditional saddle point method as well as considering angular momentum.With considering the influence of angular momentum,the test particle first-passing over the conditional saddle point model,multi-passing over saddle point method and the simulation method defined in the ground state position are compared.The effects of temperature and incident energy on the passing probability with different angular momentum are discussed.It is found that the ground state positions and potential energies change obviously after adding angular momentum.With the increase of angular momentum,the ground state position moves to the right,and the potential wells become shallower and finally disappear.The greater the angular momentum,the greater the passing probability.In addition,it is also found that the passing probability increases with the increase of temperature and incident energy at the same angular momentum.